In this workshop, David Silberbauer provides a production-focused approach to creating a sinkhole sand effect in Houdini. This workshop emphasizes optimization and modular construction, which reflect professional workflow practices. By combining heightfields, grain simulations, and Solaris rendering, artists will gain practical experience in Houdini while creating a visually compelling effect.

Duration: 7m 9s

This lesson establishes essential foundations for working efficiently in Houdini by emphasizing proper project organization and procedural workflows. Investing time in setting up a clean, organized project structure and adopting procedural modeling techniques from the start will save significant time and frustration later, especially when working in teams or making changes to complex scenes.

Duration: 34m 51s

This lesson demonstrates how to combine multiple heightfield nodes to create realistic desert terrain. Success lies in proper resolution settings, effective use of masks, and blending noise, patterns, and distortion to achieve natural-looking results. By mastering heightfield operations, artists can create a wide variety of terrain effects beyond just desert dunes.

Duration: 40m 25s

This lesson demonstrates the stages of creating grain simulations in Houdini by manually building DOP networks, explaining how different components interact. By starting with a simplified version, artists gain insight into how attributes like attraction, glue constraints, and the stopped attribute control grain behavior. This approach ensures better control and makes the process more manageable and less intimidating.

Duration: 54m 34s

In this lesson, David establishes the collision and curve setup necessary for grain simulation in Houdini. He demonstrated professional techniques for creating controllable, animated particle sources, combining VDB operations, procedural curve manipulation, and attribute-driven masking. The approach of building collision geometry first, with proper UVs and optimized topology, sets the stage for the next lesson, where the grain source will be created, and the custom simulation network will be implemented with attraction weights and glue constraints.

Duration: 42m 42s

This lesson covers a grain simulation workflow that involves progressive activation and organic breakup patterns. This workflow relies on properly managing custom attributes and ensuring correct solver settings. David demonstrates professional production practices, building low-resolution simulations first, then upresing them using the appropriate shelf tools.

Duration: 58m 31s

In this lesson, David introduces Solaris, Houdini's USD-based environment for scene assembly and rendering. The overall workflow emphasizes organization, proper naming conventions, and the importance of MaterialX shader networks for achieving production-quality renders in the Karma renderer. Edge blending is achieved through practical Houdini-based solutions, eliminating the need for a separate compositing step.

Duration: 59m 14s

This lesson demonstrates how to use Houdini's procedural scattering tools and USD instancing for efficient set dressing. The final aesthetic choices are subjective, and should be modified according to your individual preferences. The main takeaway is understanding how variant indexing works in USD instancers and how to achieve proper attribute mapping for multi-variant instancing.

Duration: 52m 19s

The final lesson in the workshop completes the process of creating a production-ready VFX shot in Houdini, from gathering reference to final rendering. Establishing a procedural workflow is crucial in professional VFX production, where tight deadlines and numerous shot variations are common. The ability to package setups into reusable tools (HDAs) that multiple artists can deploy saves significant production time and ensures consistency between shots.

Duration: 28m 44s